Add migration script for backends prior to 1.3.3

migrate.py

@@ -0,0 +1,13 @@
+#!/usr/bin/python3
+import os
+import redis
+
+files = os.listdir("authtokens/")
+r = redis.StrictRedis(host='localhost', port=6379, db=0)
+
+for f in files:
+    os.rename("authtokens/"+f, "authtokens/"+f.replace(".secret", ".koyu.space.secret"))
+    uuid = str(r.get("nordcast/uuids/" + f.replace(".secret", ""))).replace("b'", "").replace("'", "")
+    r.set("nordcast/uuids/" + f.replace(".secret", "") + "$$koyu.space", uuid)
+    podlist = str(r.get("nordcast/podlist/" + f.replace(".secret", ""))).replace("b'", "").replace("'", "")
+    r.set("nordcast/podlist/" + f.replace(".secret", "") + "$$koyu.space", podlist)